A.176~253 B.176~255 C.176~256 D.176~257
A.≤300ms B.≤100ms C.≤200ms D.≤500ms
A.抑制噪聲 B.抑制零點漂移 C.穩(wěn)定放大倍數(shù) D.抑制飽和失真